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Create unit test for function bitmap_name #125

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Create unit test for function bitmap_name #125

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9eeda3c
Create unit test for function bitmap_name
sam-stajnko Aug 28, 2025
fd887b5
Replace load_bitmap with create_bitmap
sam-stajnko Sep 2, 2025
7be239d
Free bitmaps after each test. Minor refinements.
sam-stajnko Sep 12, 2025
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59 changes: 59 additions & 0 deletions coresdk/src/test/unit_tests/unit_test_bitmap.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -128,3 +128,62 @@ TEST_CASE("bitmap bounding details can be retrieved", "[bitmap]")
}
free_bitmap(bmp);
}

TEST_CASE("name can be retrieved from bitmap", "[bitmap][bitmap_name]")
{
SECTION("can get bitmap name")
{
bitmap bmp = load_bitmap("rocket", "rocket_sprt.png");
REQUIRE(bitmap_valid(bmp));

string name = bitmap_name(bmp);
REQUIRE(name == "rocket");
}

SECTION("empty string returned for bitmap name when passing nullptr")
{
string name = bitmap_name(nullptr);
REQUIRE(name == "");
}

SECTION("empty string returned for bitmap when passing freed bitmap")
{
bitmap bmp = load_bitmap("frog", "frog.png");
REQUIRE(bitmap_valid(bmp));

free_bitmap(bmp);

string name = bitmap_name(bmp);
REQUIRE_FALSE(name == "frog");
REQUIRE(name == "");
}

SECTION("can get unique names from bitmaps when names are reused")
{
bitmap bmp_1 = create_bitmap("blank", 300, 200);
bitmap bmp_2 = create_bitmap("blank", 800, 600);

string name_1 = bitmap_name(bmp_1);
string name_2 = bitmap_name(bmp_2);

REQUIRE(name_1 == "blank");
REQUIRE(name_2 == "blank0");
}

SECTION("can get name of bitmap when name is empty string")
{
bitmap bmp = create_bitmap("", 64, 64);
string name = bitmap_name(bmp);

REQUIRE(name == "");
}

SECTION("can get name of bitmap when name includes special characters")
{
string silly_name = "AbCdEf 2+3=5 !@#$% \n";
bitmap bmp = create_bitmap(silly_name, 128, 128);

string returned_name = bitmap_name(bmp);
REQUIRE(returned_name == silly_name);
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@dijidiji dijidiji Aug 28, 2025 •
edited
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You can also use Catch2's string matchers for assertions with std::strings.

For example, to use Equals:

using Catch::Matchers::Equals;
Suggested change
REQUIRE(returned_name == silly_name);
REQUIRE_THAT(returned_name, Equals(silly_name));

I'm not sure if there's a reason to prefer using one over the other, just thought it was worth noting. So don't consider this a required change - I'm half reminding myself here for things to note down in the guide!

}
}
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